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Furnace & HVAC Replacement Parts

Furnace & HVAC Replacement Parts

Shop the full range of furnace and HVAC replacement parts at Furnace Part Source, covering heating, cooling, and control components for residential, commercial, and industrial equipment. Browse by category or search by exact part number to find the right replacement fast.

Use the category filters below to narrow results by part type, including actuators, assemblies, blower motors, burners, capacitors, control boards, coils, contactors, dampers, drain pans, heating elements, flame sensors, ignitors, motors, switches, transformers, and wiring.

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    Watts 0386456 N256 3/4"BrzFeedWtrReg 10/25#

    Watts

    MSRP: $296.36
    Now: $229.00
    Watts 0386456 N256 3/4"BrzFeedWtrReg 10/25#  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $296.36
    Now: $229.00
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    MSRP: $296.36
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    Watts 0275464 174A-1-150# 3,795,000 RELF VLV

    Watts

    MSRP: $225.14
    Now: $170.56
    Watts 0275464 174A-1-150# 3,795,000 RELF VLV  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $225.14
    Now: $170.56
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    Watts R119-04CG 1/2"REG 300#In 2-125#OutW/Gage

    Parker Watts Fluid Air

    MSRP: $309.54
    Now: $239.19
    Watts R119-04CG 1/2"REG 300#In 2-125#OutW/Gage  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $309.54
    Now: $239.19
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    MSRP: $309.54
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    Watts 0121475 3/4"LF174A 100#RlfVlv 1695000

    Watts

    MSRP: $313.93
    Now: $237.82
    Watts 0121475 3/4"LF174A 100#RlfVlv 1695000  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $313.93
    Now: $237.82
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    MSRP: $313.93
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    Watts 0780014 2000 2" HEAVY DUTY FLOAT VLV

    Watts

    MSRP: $215.90
    Now: $166.83
    Watts 0780014 2000 2" HEAVY DUTY FLOAT VLV  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $215.90
    Now: $166.83
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    MSRP: $215.90
    Now: $166.83
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    Watts 0121662 DPTG3-3 T/P GaugeBackMnt 0/200

    Watts

    MSRP: $109.40
    Now: $84.53
    Watts 0121662 DPTG3-3 T/P GaugeBackMnt 0/200  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $109.40
    Now: $84.53
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    MSRP: $109.40
    Now: $84.53
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    Watts 0792039 3/4" BrssVacBrkr LF288A LdFree

    Watts

    MSRP: $261.39
    Now: $201.99
    Watts 0792039 3/4" BrssVacBrkr LF288A LdFree  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $261.39
    Now: $201.99
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    MSRP: $261.39
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    Watts 0275404 174A-1-125# 3,215,000 RELF VLV

    Watts

    MSRP: $260.09
    Now: $200.98
    Watts 0275404 174A-1-125# 3,215,000 RELF VLV   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $260.09
    Now: $200.98
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    Watts 0121243 3/4"Wtr#Reg w/Byp LFN250B LdFr

    Watts

    MSRP: $751.64
    Now: $580.81
    Watts 0121243 3/4"Wtr#Reg w/Byp LFN250B LdFr  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $751.64
    Now: $580.81
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    MSRP: $751.64
    Now: $580.81
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    Watts 3302-01 REPAIR KIT FOR 4" ACV-9006-03

    Watts

    MSRP: $496.47
    Now: $383.63
    Watts 3302-01 REPAIR KIT FOR 4" ACV-9006-03  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $496.47
    Now: $383.63
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    MSRP: $496.47
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    Watts 0780011 1000 1"HEAVY DUTY FLOAT VLV

    Watts

    MSRP: $369.81
    Now: $285.77
    Watts 0780011 1000 1"HEAVY DUTY FLOAT VLV  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $369.81
    Now: $285.77
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    MSRP: $369.81
    Now: $285.77
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    Watts 0121484 3/4"LF174A 150#RlfVlv 2445000

    Watts

    MSRP: $353.60
    Now: $273.23
    Watts 0121484 3/4"LF174A 150#RlfVlv 2445000  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $353.60
    Now: $273.23
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    MSRP: $353.60
    Now: $273.23
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    Watts 0275054 174A-1-50# 1,470,000 Relf Vlv

    Watts

    MSRP: $273.09
    Now: $211.03
    Watts 0275054 174A-1-50# 1,470,000 Relf Vlv  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $273.09
    Now: $211.03
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    MSRP: $273.09
    Now: $211.03
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    Watts 0009588 LFN55BM1 3/4" 25-75#PresRegult

    Watts

    MSRP: $442.76
    Now: $342.13
    Watts 0009588 LFN55BM1 3/4" 25-75#PresRegult  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $442.76
    Now: $342.13
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    MSRP: $442.76
    Now: $342.13
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    Watts 0009257 25AUBZ3 3/4" # REDUCING VALVE

    Watts

    MSRP: $392.39
    Now: $303.21
    Watts 0009257 25AUBZ3 3/4" # REDUCING VALVE  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $392.39
    Now: $303.21
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    MSRP: $392.39
    Now: $303.21
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    Watts 0163725 40XL-4-150,1" T&P 2,134,000btu

    Watts

    MSRP: $1,016.78
    Now: $770.29
    Watts 0163725 40XL-4-150,1" T&P 2,134,000btu  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,016.78
    Now: $770.29
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    MSRP: $1,016.78
    Now: $770.29
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    Watts 0009309 1" Lead Free 25AUB-Z3 25/75#

    Watts

    MSRP: $623.20
    Now: $481.57
    Watts 0009309 1" Lead Free 25AUB-Z3 25/75#  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $623.20
    Now: $481.57
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    MSRP: $623.20
    Now: $481.57
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    Watts 0121479 3/4"LF174A 125#RlfVlv 2070000

    Watts

    MSRP: $353.60
    Now: $273.23
    Watts 0121479 3/4"LF174A 125#RlfVlv 2070000  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $353.60
    Now: $273.23
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    Qty in Cart: 0
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    MSRP: $353.60
    Now: $273.23
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Furnace & HVAC Replacement Parts

This is the master category for every furnace and HVAC replacement part carried by Furnace Part Source, spanning heating, cooling, and control components across residential, commercial, and industrial equipment. Whether you're troubleshooting a specific failure or stocking parts for a service route, this category is the starting point for locating what you need.

Because this catalog spans thousands of individual parts across dozens of subcategories, the fastest way to find what you need is to search by exact OEM part number or browse into a specific subcategory, such as motors, blowers, ignitors, or control boards.

Major Subcategories

This category includes dedicated subcategories for:

  • Motors and blowers, including main blower motors, inducer motors, and blower assemblies.
  • Ignition components, including hot surface ignitors, pilot burners, and flame sensors.
  • Controls, including control boards, ignition modules, relays, and switches.
  • Electrical components, including capacitors, contactors, transformers, and circuit breakers.
  • Structural and mechanical parts, including housings, brackets, bearings, and pulleys.
  • Combustion and venting parts, including burners, gas valves, heat exchangers, and vent dampers.

How to Find the Right Part

Before ordering, check the equipment data plate and the existing part for the model number, serial number, and part number. Because this category covers such a wide range of equipment types and brands, matching by exact part number is the most reliable way to confirm compatibility.

For best fit, compare:

  • Original part number
  • Equipment model and serial number
  • Voltage, fuel type, and system type
  • Replacement or superseded part number, if applicable

Furnace & HVAC Parts From Leading Brands

Our catalog includes replacement parts from Carrier, Trane, York, Lennox, Rheem-Ruud, Amana-Goodman, Copeland, Honeywell, and hundreds of other HVAC, refrigeration, and combustion equipment manufacturers, covering both OEM and cross-reference replacement parts.

Need Help Finding a Part?

Not sure which subcategory to search, or which part you need? Use the model number, serial number, and existing part number from your equipment, or contact Furnace Part Source for help identifying the correct replacement.

Furnace & HVAC Replacement Parts FAQs

How do I find a specific part quickly in this category?

The fastest way is to search by the exact OEM part number printed on the existing component, or to browse into a more specific subcategory, such as motors, ignitors, or control boards.

Do you carry parts for both residential and commercial equipment?

Yes. This category includes parts for residential furnaces and air handlers as well as light-commercial and industrial heating, cooling, and combustion equipment.

What if I don't know the exact part number I need?

Use the equipment model number and serial number to help narrow the search, or contact Furnace Part Source for assistance identifying the correct replacement part.

Are replacement parts here new or used?

Furnace Part Source carries brand-new replacement parts, including OEM and compatible cross-reference components, unless a listing specifically states otherwise.